Montana, 2020

High Wind in Montana, October 30, 2020

October 30, 2020 · NWS TFX · 22 events in 13 counties and zones

A cold front shifted east across the region during the afternoon of October 30, bringing gusty winds along and behind it. Wind gusts in excess of 50 mph were most widespread across north-central MT through the late afternoon.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
22

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS TFX wrote it up.

A cold front shifted east across the region during the afternoon of October 30, bringing gusty winds along and behind it. Wind gusts in excess of 50 mph were most widespread across north-central MT through the late afternoon. Gusts to 40 mph were likely across much of SW MT as well going into the evening with the strongest gusts through mountain passes.

While winds began to decrease during the evening, strong wind gusts lingered into the overnight period across eastern portions of north-central MT before winds aloft and the surface pressure gradient there relaxed. Favorable conditions for mountain wave wind enhancement were present along the immediate east slopes of the Rockies early in the evening, where some localized gusts to around 80 mph occurred, particularly west of Choteau and Bynum.

Event by event

22 high wind. Local standard time, as filed.

High Wind, North Rocky Mountain Front

When
October 30, 10:46 AM MST
Where
North Rocky Mountain Front forecast zone
Measured
57 kt (66 mph) measured gust
Reported by
Mesonet

Mesonet station mtbwg browning (mt dot) reports wind gust of 66 MPH.

High Wind, Eastern Glacier

When
October 30, 12:30 PM MST
Where
Eastern Glacier forecast zone
Measured
56 kt (64 mph) measured gust
Reported by
ASOS

Asos station kctb, cut bank airport reports 64 MPH gust.

High Wind, Southern Rocky Mountain Front

When
October 30, 1:00 PM MST
Where
Southern Rocky Mountain Front forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet

Mesonet station ricmt, 4.9 e pendroy (mcscn) reports wind gust of 57mph.

High Wind, Toole

When
October 30, 1:10 PM MST
Where
Toole forecast zone
Measured
52 kt (60 mph) measured gust
Reported by
Mesonet

Mesonet station dw0975, kevin reports wind gust of 60 MPH.

High Wind, Toole

When
October 30, 1:25 PM MST
Where
Toole forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet

Mesonet station dw9605, galata reports wind gust of 58 MPH.

High Wind, Eastern Glacier

When
October 30, 1:46 PM MST
Where
Eastern Glacier forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet

Mesonet station ew5772, cut bank reports wind gust of 58 MPH.

High Wind, Liberty

When
October 30, 1:47 PM MST
Where
Liberty forecast zone
Measured
55 kt (63 mph) measured gust
Reported by
Mesonet

Mesonet station dw4821, chester reports wind gust of 63 MPH.

High Wind, Madison

When
October 30, 2:00 PM MST
Where
Madison forecast zone
Measured
52 kt (60 mph) measured gust
Reported by
Mesonet

Mesonet station yctim, 6.3 w big sky (avalanche) reported a wind gust of 60MPH.

High Wind, Southern Rocky Mountain Front

When
October 30, 2:12 PM MST
Where
Southern Rocky Mountain Front forecast zone
Measured
51 kt (59 mph) measured gust
Reported by
AWOS

Awos station k1gm golf reports wind gust of 59 MPH.

High Wind, Eastern Teton

When
October 30, 2:35 PM MST
Where
Eastern Teton forecast zone
Measured
56 kt (64 mph) measured gust
Reported by
Trained Spotter

Spotter reports that winds have been pretty strong for the past two hours.

High Wind, Broadwater

When
October 30, 2:54 PM MST
Where
Broadwater forecast zone
Measured
56 kt (64 mph) measured gust
Reported by
Mesonet

Mesonet station ekhm8, elkhorn raws - 8 w townsend.

High Wind, Madison

When
October 30, 2:57 PM MST
Where
Madison forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet

Mesonet station mtnor norris hill (mt dot) reported a wind gust of 58 MPH.

High Wind, Cascade

When
October 30, 3:05 PM MST
Where
Cascade forecast zone
Measured
58 kt (67 mph) measured gust
Reported by
ASOS

Asos station kgtf great falls reports 67MPH gust.

High Wind, Hill

When
October 30, 3:16 PM MST
Where
Hill forecast zone
Measured
53 kt (61 mph) measured gust
Reported by
Mesonet

Mesonet station ew1931 rudyard.

High Wind, North Rocky Mountain Front

When
October 30, 3:22 PM MST
Where
North Rocky Mountain Front forecast zone
Measured
53 kt (61 mph) measured gust
Reported by
Mesonet

Mesonet station mtbrn two medicine bridge (mt dot) reports wind gust of 61MPH.

High Wind, Cascade

When
October 30, 3:35 PM MST
Where
Cascade forecast zone
Measured
62 kt (71 mph) measured gust
Reported by
Trained Spotter

Trained spotter reports wind gusts of 71MPH at 7SW Highwood.

High Wind, Hill

When
October 30, 3:42 PM MST
Where
Hill forecast zone
Measured
53 kt (61 mph) measured gust
Reported by
ASOS

Asos station khvr havre ap asos measured wind gust of 61 MPH.

High Wind, Fergus

When
October 30, 4:58 PM MST
Where
Fergus forecast zone
Measured
57 kt (66 mph) measured gust
Reported by
Mesonet

Mesonet station in Denton reports wind gust to 66 MPH.

High Wind, Southern Lewis and Clark

When
October 30, 5:43 PM MST
Where
Southern Lewis and Clark forecast zone
Measured
56 kt (64 mph) measured gust
Reported by
Mesonet

Mesonet station 301005 sieben reports 65 MPH wind gust.

High Wind, Fergus

When
October 30, 5:46 PM MST
Where
Fergus forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
AWOS

Awos station k1om oscar measured wind gust of 58 MPH.

High Wind, Beaverhead

When
October 30, 6:47 PM MST
Where
Beaverhead forecast zone
Measured
54 kt (62 mph) measured gust
Reported by
Mesonet

Mesonet station brrm8 brenner raws.

High Wind, Southern Lewis and Clark

When
October 30, 8:41 PM MST
Where
Southern Lewis and Clark forecast zone
Measured
59 kt (68 mph) measured gust
Reported by
Mesonet

Msonet station mtmdp macdonald pass (mt dot) reports wind gust of 68 MPH.

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Montana in 2020Every state in 2020This day in weather historyWarnings in Montana, October 2020

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 924549, 924550, 924563, 924564, 924565, 924552, 924559, 924560, 924558, 924562, 924509, 924561, 924511, 924553, 924551, 924510, 924554, 924512, 924556, 924513, 924508, 924555.